Socket for electric lamps.



L. P. DIXON. SOCKET FOR ELECTRIC LAMPS. nrucmon mfp m1. s. 1914'.

. Patented Jan. 30,1917.

LAUBENS P. DIXON, F NEWYOBK, N. Y.

socxE'r non ELECTRIC. LAMPS.

To all whom zt my concern:

Be it known that I,ILAURnNs P. DIXON, a` citizenof the United States, and a resident of New `York, county and State of New- York, have invented a certain new and useful Improvement in Sockets for Electric Lamps, of'which the following is a full, clear, and exact specification.

This invention relates to a class'of devices adapted to be used in conjunction with electric lighting systems.`

My invention has for its object primarily to provide a socket designed to be employed for permitting a number of electric lamps to be mounted thereon whereby the lamps may be lighted separately or collectively from an electric circuit, and wherein is provided a casing made of material which is a non-conductor of electricity, this casing being composed of a middle section and two recessed tubular end4 sections so that when assembled separate chambers are'provided therein. Through the end sections `are formed registered passages, each of which communicates with one of the chambers, and each passage is adapted to receive one of the 'electric lamps.v y

Another object of the invention is to provide at spaced intervals in each chamber a so pair of contacts, and the contacts of each pair are relatively arranged so as to be engaged by the contacts of the lamps when applied to the socket.

Still another object of the invention 1s to l provide in openings formed in the middle section tubular vmetal receivers which are connected to the contacts for permitting the electric circuit to be transmitted thereto through the medium of plugs provided on 0 the ends of the wire of the electric circuit leading to the socket, and which are removably inserted in they receivers whereby the lamps may be lighted collectively, or separately.

With these and other objects in view, the

inventionwill be hereinafter more particu-1 larly described withreference to the accompanying drawing which forms a part of this specification, in which similar characters of reference indicate` corresponding parts in all the views, and will then be pointed out in the claims at the end of the description.

In the drawing, Figure 1 is a fragmentary view, showing a top plan of one form of socket embodying my invention. Fig. 2 is Specioation of Letters Intent.

Application led January 6, 1914. Serial No. 810,603.

Patented Jan. 30, 1917.

a longitudinal vertical section taken `on the line II-II of Fi 1. Fig. 3 is a plan of the middlesection o the casing of the socket. Fig. 4 1s a plan of one of the end sections ofthe socket. Fig. 5 is a plan of the second end section ofthe socket. Fi 6 isoa plan ,A of one of'the contacts used 1n the socket.

Fig. 7 is an edge view thereof,M Fig. 8 is aI plan of one of the other contacts used in the socket. Fig. 9 is an edge view thereof. Flg. 10 isa fragmentary view showing an enlarged side elevation, partly in section, of one of the tubular'receivers lemployed in the section. Fig. 11 is anenlarged elevation, partly in section, of one of theA plugs employed on` the ends of the wires of the electric circuit. Fig.` 12, is a fragmentary view, showing the lowe part of a form of electric lamp adapted to be used in conjunction with the socket, and Fig. 13 is an inverted plan of the socket.

The socket has a casing 10 made of porcelain, or other material which is a Inon-conductor of electricity, and said casing is preferably composed of a middle sectin 11, and two recessed tubular endj sections, or sleeves 12 and 13. The middle section 11 is in the form of a circular disk having two openings- 14 and 15 at diametrically opposite parts thereof, and these openings are adjacent to the edge of the disk. In proximity to the4 edge of the disk and approximately midway between the openings 14 and 15 is an opening 16, and contiguous'to the edge of the diskat parts thereof which are opposite to the opening 16 are two similar spaced openings 17 and 18. Also through the disk and adjacent to each of the openings 16, 17, 18 are provided holes, as 19, 20, 21, respectively.

The end section, or sleeve 12 has a tubular part 22 to provide, a passage 23 there-` through. Extending at a right angle from the outer periphery'of the tubular part is an annular plate 24 having a concentric flange '25 projecting from its outer edge in an opsleeve 12. This wall of the passage islined with copper or other material, as 29, which is a conductor of electricity, and this lining mav be interiorly threaded, or provided with a s ot', as 30, for reception of the pin 31 of the neck 31l of a wellknown type of electric lamp, as 32 Figs. 12 and 13.

The end section, or sleeve 13 is formed with a tubular part 33 .whereby a passage 34 is provided therethrough. Projecting at a right angle from the outer periphery of the tubular part 33 is an annular plate 35 provided with a concentric flange 36v extending from its outer edge in an opposite direction from the tubular part 33, and through diametrically opposite parts of this annular plate are two openings 37 and 38 which are adapted to be registered with the openings 14 and 15 of the disk 11. Also through the annular plate approximately midway be tween the openings 37 and 38 is an opening 39 adapted to be registered with the opening 16 of the disk, and at spaced intervals in opposite parts of the annular plate are two openings 40 and 41, each of which is adapted to be registered with one of the openings 17 and 18, respectively, of the disk 11. The Wall of the passage 34 is lined with copper, or other material, as 41", which is a conductor of electricity and this lining may be interiorly threaded, or provided with a slot, not shown, for reception of the pin ofthe neck of a. second electric lamp of a similar type to the lamp 31. When the sleeve 13 is applied to the disk 11 it; is disposed, like the sleeve 12, relatively to the disk so that the free edge of its flange 36 will rest against the second surface of the disk. The annular plate 35 will thereby be spaced from the disk to provide a second chamber 42 which communicates with the passage 34 of this sleeve. When these parts are thus assembled and arranged so that the openings 14 and 15 of the disk 11, the openings 26 and 27 of the sleeve 12, and the openings 37 and 38 of the sleeve 13l are in register, the parts are secured together by passing bolts 43 and 44 through the registered openings.

Through the holes 19, 20, 21, of the disk 11 are provided pins, or screws 45, 46, 47 all of which are of suliicient lengths so that both ends of each pin extends beyond both surfaces of the disk and into the chambers' 28 and 42 of the casing. On the end of the pin 45 extending into the chamber 28 is held a contact 48 which is preferably in the form of a metal strip disposed in this chamber so as to be engaged by one of the contacts of the electric lamp when mounted in the passage 23 of the sleeve 12, and on the end of the pin 46 projecting in this chamber is held a second contact 49 which is also in the form of a metal strip disposed in opposing relation to the contact 48 for being engaged by the second contact of the electric lamp.

Also on the end of the pin 45 extending into the chamber 42 is held a contact 50 in the form of a metal strip dis osed in this chamber so as to be engaged y one of the contacts of a second electric lamp when mounted in the passage 34, and on the end of the pin 47 projecting in said chamber 42 is held a contact 51 in the form of a metal strip arranged in opposition to the contact for` engagement with the other contact of the second electric lamp.

Through the contacts 48 and 50 are openings which are in register with the opening 16 of the disk 11. Also through the contact 49 is an opening in re ister with the opening 17 of the dlsk, anc? through the contact 51 is an opening in register with the opening 18 of the disk. In these sets of openings are provided tubular receivers, as 56, 57, 58, one of the receivers, being held in each set of the openings, and the passages through the receivers are in register respectively with the openings 39, 40, 41 of the sleeve 13. All of the receivers 56, 57, 58 are inthe forms of metal tubes of suicient lengths so that the ends of each tube will extend a slight distance into the chambers of the casmgs, and by bending the edges of the free ends of the tubes so as to overlap the op osed surfaces of the disk and the contacts t e tubular receivers will be held in the casing against displacement for serving as conductors of electricity to the contacts. Each of the tubular meta-l receivers serves to removably admit therein one of the plugs, as 59, 60, 61, provided upon one of the corresponding ends of wires, as 62, 63, 64, of an electric circuit, not shown, whereby the current of the circuit may be transmitted to the contacts of the socket, and all of the wires may be suitabl arranged to lead from a single source o electricity supply, or from two separate sources of electricity sugiply. The plugs may serve independently or opening, or closing the circuit to contacts of the socket, or the plugs may be removably disposed so as to remam in the tubular receivers, and the circuit may then be closed by any suitable means provided therein. When it is desired to employ the lugs for closing the circuit to light an e ectric lamp in engagement with the contacts in the chamber 28 of the casi the plugs 59 and 60 are inserted througg the openings 39 and 40 of the ,sleeve 13 and into the receivers 56 and 57 the current will then be transmitted to this lamp over the wires 62 and 63, or when it is desired to close the circuit for lighting an electric lamp in. engagement with the contacts of the chamber 42 of the casing the plug 60 is removed from its receiver, and the plug 61 is inserted through the opening 41 of the sleeve 13 and into the receiver 58. In order to close the circuit to light both of the lamps lll lll

all of the plugs are 'inserted in their respective receivers, and the opening and closing of the circuit to the lamps may then be controlled by the means provided lin the circuit for use for this purpose. By the means described all of the electric lamps may be lighted separately or collectively.

In the foregoing description, I have embodied the preferred form of my invention, but I do not wish to be understood as limiting myself thereto, as I am aware that modiications may be made therein without departing from the principle, or, sacrificing any of the advantages of this invention, therefore I reserve to myself the right to make such changes as fairly fall within the scope of the appended clalms. l

Having thus descrlbed my invention, I

claim as new and desire to secure by Letters Patent 1. In a socket for electric lamps, the com-` bination with a central disk of two alined lamp socket sleeves removably secured to opposite sides of said disk, said sleeves each having a metallic lining for contact with the end of an electric lamp, flanges extending outwardly from the opposed ends of said sleeves with turned peripheral edges resting on the central disk forproviding chambers between the flanges andthe central disk, with means for securing the sleeves to the central disk, two electrical contacts secured on each side of the central disk l'within said chambers, each of said chambers having` an opening therein for retaining the end of a metallic sleeve, said central disk having openings therethrough through the openings of the contacts, the

and metal sleeves disposed through said openings and.

flange of one of the socket sleeves having three openings to admit plugs for insertion Y in the said sleeves of the central disk and the contacts, substantially as described, and for the purpose specified.

2. A double ended lamp socket comprising a central disk, cup shaped lamp receivers attached to the faces of said disk, electrical contacts mounted on each face of said disk and adapted to contact with a lamp when in place within said receivers, a metallic sleeve passing through said disk and connecting any two contacts on opposite faces of said disk, and a separate sleeve for each of the remaining contacts, said sleeves being adapted to receive either the positive or the negative plugs of an electric circuit, whereby either or both of the lamps may be lighted as desired.

3. A lamp socket comprising a central disk, lamp receivers attached'lto each face of said disk, two electric contacts mounted on each face of said disk and adapted to.

make a contact with a lamp when secured within said receivers, a metallic sleeve connecting any two contacts on opposite sides of said disk, and separate sleeves connected toeach of the two remaining contacts, said sleeves being adapted to receive the positive and negative plugs of an electric circuit, whereby either or both of the lamps may be lighted as desired.

This specification signed and witnessed this fifth day of January, A. D. 1914.

LAURENS P. DIXON. Witnesses:

Ro'r. B. ABBorr'r, M. DERMODY. 

